What is metaphysics? -- What does it mean to study being "as being"? -- St. Thomas and the seed of metaphysics -- St. Thomas, physics, and the principle of metaphysics -- St. Thomas and the principle of causality -- St. Thomas and analogy : the logician and the metaphysician -- The importance of substance -- St. Thomas, metaphysics, and formal causality -- St. Thomas, metaphysical procedure, and the formal cause -- St. Thomas, form, and incorruptibility -- St. Thomas and the distinction between form and esse in caused things -- Nature as a metaphysical object -- The individual as a mode of being according to Thomas Aquinas